/*
 * Copyright (c) 2004-2022, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the HISP project nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.hisp.dhis.tracker.programrule;

import java.util.Optional;
import java.util.Set;

import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.RequiredArgsConstructor;

import org.apache.commons.lang3.StringUtils;
import org.hisp.dhis.rules.models.AttributeType;
import org.hisp.dhis.tracker.domain.DataValue;

@Getter
@RequiredArgsConstructor
@AllArgsConstructor
public class EventActionRule
    implements ActionRule
{
    private final String ruleUid;

    private final String event;

    private final String data;

    private final String field;

    private final AttributeType attributeType;

    private String content;

    private Set<DataValue> dataValues;

    public String getValue()
    {
        StringBuilder stringBuilder = new StringBuilder();
        if ( !StringUtils.isEmpty( content ) )
        {
            stringBuilder.append( data );
        }
        if ( !StringUtils.isEmpty( stringBuilder.toString() ) )
        {
            stringBuilder.append( " " );
        }
        if ( !StringUtils.isEmpty( data ) )
        {
            stringBuilder.append( data );
        }
        return stringBuilder.toString();
    }

    public Optional<DataValue> getDataValue()
    {
        if ( attributeType.equals( AttributeType.DATA_ELEMENT ) )
        {
            return getDataValues()
                .stream()
                .filter( dv -> dv.getDataElement().equals( field ) )
                .findAny();
        }

        return Optional.empty();

    }
}
